. >>> president obama took his bush for tougher gun control laws to minneapolis today. a city they used to call murder-apolis back in the '90s before an aggressive push there to curb gun violence brought the homicide rate down with juvenile violent crime rates also dropping sharply. the president is calling on congress to pass that expansion of background checks, limits on high-capacity ammunition magazines and a ban on new assault weapons. >>> a lot of americans have read the book called "american sniper," written by former navy s.e.a.l. chris kyle, often referred to as america's best and deadliest sniper during his war-time deployments overseas. chris kyle was killed this weekend in texas after he and a friend took a troubled fellow marine veteran for an outing at a shooting range. we get the story tonight from nbc's jim miklaszewski. >> reporter: as a navy s.e.a.l. sniper in iraq, chris kyle was so feared, the enemy called him the devil of ramadi and put an $80,000 on his head. >> it gave me pride knowing i put fear in the mind of the terrorists and made them fearful